Fill in the following blanks with suitable words :
(a) A current is a flow of .................For this to happen there must be a ...........circuit.
(b) Current is measured in................ using an .................. placed in ............ in a circuit.
(a) Electric current is carried by moving electrons through a conductor. Electric circuit is a continuous and closed path of electric current.
(b) Current is measured in ampere using an ammeter placed in series in a circuit.